I'll keep this brief, since I don't like promoting my own work in this blog. I just got a new Zaurus, intending to use it for wireless security auditing. None of the commercially-available CompactFlash WiFi cards offer external antenna jacks, which is a problem. So I've created a HOWTO for using a more powerful 200mW PCMCIA card with antenna hookups. I've also created an installable package for nmap v3.70. Interested? See my Zaurus page.